TABLE OF CONTENTS. 



Page. 



TlTLE OF VOLUME, V 



Table op Contents, vii 



List of Illustrations, ix 



Preface, xiii 



Introduction, 1 



PART L— ODONTOLCLE. 



Chapter L The Skull of Hesperornis, 5 



LL The Teeth of Hesperornis, 13 



ITT. The Presacral Vertebrae of Hesperornis, IV 



IV. The Shoulder-Girdle and Ribs of Hesperornis, 57 



V. The Pelvic Akch of Hesperornis, 69 



VL The Caudal Vertebrae of Hesperornis, 77. 



VLL The Legs and Feet of Hesperornis, 87 



VLTL The Restoration of Hesperornis, ill 



PART IL— ODONTOTOR1VLE. 



Chapter IX. The Skull and Teeth of Ichthtornis, 119 



X. The Presacral Vertebrae of Ichthyornis, 127 



" XL The Shoulder-Girdle of Ichthtornis and Apatornis, 141 



" XH. The Wings of Ichthtornis and Apatornis, 149 



" XLTL The Pelvic Arch of Ichthtornis and Apatornis, 161 



" XIV. The Caudal Vertebrae of Ichthtornis, 166 



" XV. The Legs and Feet of Ichthtornis and Apatornis, 171 



" XVI. The Restoration of Ichthtornis, 177 



" XVII. Conclusion, 185 



Appendix — Stnopsis of American Cretaceous Birds, 191 



vii 



